TY - JOUR AU1 - Lack, David TI - The Significance of Clutch‐size JF - Ibis DO - 10.1111/j.1474-919X.1947.tb04155.x DA - 1947-01-01 UR - https://www.deepdyve.com/lp/wiley/the-significance-of-clutch-size-GM0BViQ3VI SP - 302 EP - 352 VL - 89 IS - 2 DP - DeepDyve ER -